Using NumPy to create an initialization array in Python

Import NumPy as NP

Np.arange (Dtype = float) #numpy中的arange与普通的range作用一样, range (start, stop, step)

#arange可以通过dtype来指定创建的数组类型, arrays differ from tuples and lists, and the entire array must be of the same type.

Np.linspace (Start, stop, number) #其中number指定了start到stop之间的个数 (contains both end point values)

Of course, you can also generate random numbers to initialize an array.

Np.random.rand (2, 4) #产生一个2行4列的array, Rand uses a uniform distribution between 0 and 1.

NP.RANDOM.RANDN (2, 4) #产生一个2行4列的array, RANDN uses a standard normal distribution, that is, the mean value is 0, the variance is 1

Using NumPy to create an initialization array in Python